document.write( "Question 1065838: I am trying to factor this expression as if I did not know the form of a difference of squares.\r
\n" ); document.write( "\n" ); document.write( "Where is my error?\r
\n" ); document.write( "\n" ); document.write( "4x^2-49
\n" ); document.write( "4x^2 + 14x - 14x - 49
\n" ); document.write( "(4x^2 + 14x) + (- 14x - 49)
\n" ); document.write( "2x(x+7) + -7(x+7)
\n" ); document.write( "(2x-7)(x+7)\r
\n" ); document.write( "\n" ); document.write( "However (2x-7)(x+7) = 2x^2-49 not 4x^2-49
\n" ); document.write( "Where is my error?
\n" ); document.write( "

Algebra.Com's Answer #681007 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
\"%284x%5E2+%2B+14x%29+%2B+%28-+14x+-+49%29\"
\n" ); document.write( "\"2x%282x%2B7%29-7%282x%2B7%29\"<--- Left out a 2 in the right hand term
\n" ); document.write( "\"%282x-7%29%282x%2B7%29\"
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